chore: use nitropack-nightly for nightly release channel

[pi0]

• chore: switch to nitropack-nightly from nitropack-edge
• allow testing ci directly

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[nuxt-studio]

✅ Live Preview ready!

Name	Edit	Preview	Latest Commit
nitro	Edit on Studio ↗︎	View Live Preview	f3f2acb

[codecov]

Codecov Report

Merging #1841 (f3f2acb) into main (3e9302a) will decrease coverage by 0.08%.
Report is 1 commits behind head on main.
The diff coverage is 0.00%.

❗ Current head f3f2acb differs from pull request most recent head ff7bbca. Consider uploading reports for the commit ff7bbca to get more accurate results

@@            Coverage Diff             @@
##             main    #1841      +/-   ##
==========================================
- Coverage   52.36%   52.28%   -0.08%     
==========================================
  Files         170      170              
  Lines       11775    11777       +2     
  Branches      907      903       -4     
==========================================
- Hits         6166     6158       -8     
- Misses       5513     5522       +9     
- Partials       96       97       +1     

Files	Coverage Δ
scripts/bump-nightly.ts	0.00% <0.00%> (ø)
src/runtime/cache.ts	0.00% <0.00%> (ø)

... and 2 files with indirect coverage changes